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1997 | 91 | 2 | 381-385
Article title

Superconductivity in Anderson Lattice Model

Content
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Languages of publication
EN
Abstracts
EN
We study the superconducting instabilities generated by the inclusion in the Anderson lattice model of a density-density attractive potential between correlated electrons on nearest-neighbouring sites. Using a description of the normal phase based on a perturbative expansion around the atomic limit, we treat the attractive potential in the broken-symmetry Hartree-Fock scheme and analyze which of the possible symmetries of the superconducting order parameter leads to the highest possible transition temperature in the case of a two-dimensional square lattice. For values of the on-site f-repulsion large compared to the hopping amplitude, a suppression of any possible superconducting phase occurs, regardless of the symmetry of the order parameter.
Keywords
EN
Publisher

Year
Volume
91
Issue
2
Pages
381-385
Physical description
Dates
published
1997-02
Contributors
author
  • Unità I.N.F.M. di Salerno -Dipartimento di Fisica Teorica e S.M.S.A., Università di Salerno, 84081 Baronissi (Salerno), Italy
author
  • Unità I.N.F.M. di Salerno -Dipartimento di Fisica Teorica e S.M.S.A., Università di Salerno, 84081 Baronissi (Salerno), Italy
author
  • Institute of Physics, A. Mickiewicz University, 60-769 Poznań, Poland
References
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv91z233kz
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